Process of making brass and copper alloys.



Liggfiflfi, Specification of Letters Iatent.

T 0 all whom it may ('07Z476T2'L I Be it known thsS fl, GUILLIAM H. (IL-mien, a citizen of tlie llnited States, and a resident of Philadelphia, in the county of Philsdelpliia. and Stale oi Penn vania, have in's 'ented 21 certain new useful Process of Making Brasssnd Copper Alloys, of which the following is specification.

The principal object of she present invention is to provide for making b1:-z '-*""end copper alloys rapidly and upon rr-e scale and effecting not only the econ l operations upon a. laceconomies wlii l1 7 J waste of material, such as The invention can be pcac 1 v g copper 1n ;1 furnace of relatively large cs.-

pacity, preferably of the revel-hereto or the process can be precii c. with the first melted copper, t

per. for example. Wlllfifll is in cathodes. The idea is ihet s. :2 large amount oi: copper is mel'ied in a comparatively iner zpcnsive Way. example, the copper can be cheaply in open hearth furnace and to i. is tanned at the corre fi ween", which means .1. c1 tempersfiure and atmosphere 'mzal O1 reducing} there if a saving in the; Zinc is no; Wasted can he "rescily uttescmp is be added should he .ineli cdin the electric furnace so that it may not onduly oxidize and lose zinc. If desired an electric furnace of large capacity might be vonciiizaiion. end the propei cussing e "ied. If

Application filed February 16, 1915.

Feeenced 3 pc. 19, 1%116.

Serial Zd'o. 8,468.

used for melting and maintaining the copper belis. A lame quantity of copper can be readily and cheaply melted and in fact in the manufacture of copper there are produced largebsths of melted copper. This melted copper can be readily brought to the proper pitch or condition of oxidation for making alloy.

According to my invencion, I avail myself or" the economy that follows from the initial use of lzu'ge mass of melted copper. The required quantity of this melted copper of proper pitch, which has been compare.- tively cheaply obtained, is drawn off into an electric furnace in which it is alloyed and in which the alloy is brought to the proper casting temperature and condition for pouring. The alloying and the attainment of the proper casting temperature and condition can be accomplished because of the control of the temperature and atmosphere that is sfiorded by an electric furnace. Furthec more the loss of zinc by volatilization or oxidation is minimized or prevented, so that a inui'eriel economy is efiected. The ingots made this process may be large. There is an economy not only in the process of menuisciu'cing the brass but also in the subsec handling and worklng of the slab, F

.10: it costs little, if anything, more to handle and Work a large slab than it does a small one.

What I claim is:

The process of making brass rad cc .ter alloys which consists in melting copper, introducing the previously melted copper into an elecfiiic furnace adding alloying mete ie-ls to the copper in ,tlie elecln'ic fcineee, .nd maintaining a, proper temperature to,

zwoio volscilizction defying the addition of he alloying msierisl and bringing the re- "ulting alloy [so :the pi'oper cesfiing tempera- 111118, substsn tislly as described.

in testimony whereof l. lisve hereunto signed my name.

G UlLLlAl/l H. CLAMER.

1V il nesses .fiowsno Eli Wool). RONALD llCiOCAUGHETL- 

